I get most of my basic UK-based stuff like small prints, mugs and calendars output at www.photobox.co.uk.

If I have a more specific or very large print job, I'd go to a pro lab like Metro Imaging in London: http://www.metroimaging.co.uk/ - they're pretty highly respected and if you can afford the prices, the quality is excellent - or at least it was when I used to Live in London and use them...

Thank you so much for your reply. I have used photobox before but wasnt very impressed with the quality so wondered who else there was. Ill have a look at metro. Thanks again for your reply. Ive previously posted a message on here and it had 44 view and not one reply!